Pith Number

pith:TRQVA4H6

pith:2006:TRQVA4H6WZW2RIBSQULXP3FLXF

not attested not anchored not stored refs pending

Active Galactic Nuclei as scaled-up Galactic black holes

C Knigge, E Koerding, I M McHardy, P Uttley, R P Fender

arxiv:astro-ph/0612273 v1 · 2006-12-11 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TRQVA4H6WZW2RIBSQULXP3FLXF}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Strong X-ray Variability of I Zwicky 1: Obscuration from Clumpy Accretion-Disk Winds

Receipt and verification

First computed	2026-05-18T04:23:00.489014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9c615070feb66da8a032851777ecabb97d6882056973a6f1ea348d206357a6ce

Aliases

arxiv: astro-ph/0612273 · arxiv_version: astro-ph/0612273v1 · doi: 10.48550/arxiv.astro-ph/0612273 · pith_short_12: TRQVA4H6WZW2 · pith_short_16: TRQVA4H6WZW2RIBS · pith_short_8: TRQVA4H6

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/TRQVA4H6WZW2RIBSQULXP3FLXF \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 9c615070feb66da8a032851777ecabb97d6882056973a6f1ea348d206357a6ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c311bf298098e812933c220f5d543424fa3fcccbc8498d7756e72c44fc025105",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-12-11T16:44:04Z",
    "title_canon_sha256": "3c7f0c84c61b0ad802888f06a3acafa9286900e3ed8d0e05ea52bb9cfff97bca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0612273",
    "kind": "arxiv",
    "version": 1
  }
}